... .Competitive price & prompt shipment 3.1 year warranty time For iPhone 3gs internal battery,rechargeable battery,replacement batteryvoltage: 3.7Vcapacity: 1220mAhtype: Li-Polymercolor: ... temperature controls switch,high temperature fuse gives extra protection.Compatible battery model:616-0513Fit phones model:Apple iPhone 3GSNote:12 ... CE, UL,RoHS, SGS, ATC, REACH, ISO9001:2000 3gs internal battery